Obama Just Plain 'Embarrassed' For GOP Over Iran Letter (WATCH)

President Barack Obama said he was "embarrassed" for the group of Senate Republicans who sent a letter to Iran's leaders arguing that any nuclear weapons deal it makes with the U.S. right now could be overturned by a future president.

"I'm embarrassed for them. For them to address a letter to the Ayatollah, who they claim is our mortal enemy, and their basic argument is 'don't deal with our